SABIC to Highlight First Commercial Application of its High-heat Dielectric Film:

SABIC will highlight at PCIM Europe 2024 (in Hall 7, Booth 140) the first commercial application of its high-heat ELCRES™ HTV150A dielectric film.

Japan’s Nichicon Corporation used this ultra-thin specialty film to develop high-temperature, high-voltage, commercial-quality capacitors for AC-DC traction inverter modules in electric vehicles. This technological breakthrough addresses industry demand for advanced film capacitors which can enable more-efficient AC-DC power modules.

Can Operate at High Temperatures and High Voltages:

In contrast to traditional film solutions, single capacitors made with ELCRES™ HTV150A dielectric films can operate at high temperatures (up to 150°C) and high voltages (up to 1,000 volts) with stable performance. Working with SABIC, Nichicon implemented and successfully tested the film in its capacitor designs to offer candidate components to AC-DC inverter module manufacturers. A prototype capacitor will be shown at the SABIC booth.

“Our new capacitors made with SABIC’s dielectric film can help the industry realize the full benefits of silicon carbide and gallium nitride MOSFETs when used in AC-DC inverters for electric vehicles. We are pleased to collaborate with SABIC to combine our engineering leadership with SABIC’s renowned materials innovation.” 

Segmented Metallization to Achieve High Voltages:

The development project for Nichicon’s film capacitors involved the segmented metallization of the ELCRES™ HTV150A film to help achieve 900-1000V. The film’s stable, inherent dielectric properties enable the capacitors to operate at 150°C. This work included 2,000 hours of reliability life testing at 150°C, and 3,600 hours at 130°C.

“We engineered ELCRES™ HTV150A films to help customers move to the latest generation of capacitor technology, and we congratulate Nichicon on taking the lead in this endeavor,” said Scott Fisher, general manager, Technology, SABIC Polymers, Specialties BU. “Nichicon’s new film capacitors offer the potential to improve electric vehicle range, charging speed and performance, and to allow compact, lighter-weight module designs by reducing the need for active cooling.

Addresses Critical Performance Gap in Traditional Film Solutions Above 105°C

ELCRES™ HTV150A dielectric films are the first in the industry to provide stable performance at operating temperatures of -40°C to 150°C and frequencies up to 100 kHz, while offering stable capacitance, high insulation resistance and good dielectric performance.

The films address the critical performance gap experienced by traditional film solutions above 105°C. Capacitors built with 3 µm and 5 µm metalized ELCRES™ HTV150A films pass standard electrical and life tests at 150°C for 2,000 hours, and damp heat aging at 85°C and 85 percent relative humidity for 1,000 hours, with low capacitance change and stable insulation resistance.

Source: SABIC/omnexus.specialchem.com

Today's KNOWLEDGE Share:The reason for Shrinkage

Today's KNOWLEDGE Share

The oriented skin will shrink only 0.1 or 0.2 %, where the transverse core will want to shrink possibly 1%.

The conflict results in a compressive stress in the skin, due to the action of the core, trying to shrink so much more than the skin. Easy, right ?

So the skin is in a fairly safe state of COMPRESSION (failure comes with tension).

Sure ?

Zooming inside the skin, we must realize that the very reason for the shrinkage to be so small in the fiber direction, is because the much higher shrinkage of the polymer is constrained by the glass fibers. So the polymer in between the fibers is desperately trying to shrink 2%, but the glass will keep the polymer under....TENSION !

So the skin is in compression yes, but the polymer, in the skin, is in tension !

source:Vito leo

Today's KNOWLEDGE Share : Cost Effective Flame-retardant Synergist

Today's KNOWLEDGE Share

CAI Performance Additives announces the launch of ST-FR322™ flame retardant synergist.

ST-FR322™ is an environmentally friendly alternative that delivers exceptional performance and cost savings for a wide range of plastic applications.

Offering Safe Alternative to FRs Containing Antimony Trioxide:

ST-FR322™ is a unique organic and inorganic complex substance, free from harmful heavy metals. This innovative additive offers a compelling alternative to traditional flame retardants containing antimony trioxide, which raise environmental and health concerns.

The product shows a powerful synergistic effect when combined with halogenated flame retardants. It effectively replaces antimony trioxide in equal amounts in various plastics, including PA, PBT, ABS, HIPS, PS, PVC, PP, PE, EVA, and more.

Remarkably, ST-FR322™ achieves the same level of flame retardancy as antimony trioxide while offering several additional benefits:

Reduced smoke production

Anti-dripping effect

Cost savings

Improved processing

Excellent thermal stability

ST-FR322™ delivers superior performance, environmental responsibility, and cost-effectiveness, making it an ideal choice for a variety of plastic applications.

Company’s commitment to provide innovative solutions for the plastics industry, and the introduction of ST-FR322™ is just one example of their dedication to delivering superior products that meet the evolving needs of our customers. ST-FR322™ is available now in commercial quantities.

Source: CAI Performance Additives/polymer-additives.specialchem.com

SABIC Highlights its Diverse Portfolio of Polyetherimide Resins at AIX 2024

ULTEM™ resin, a polyetherimide (PEI), is adaptable to a wide range of formats, including foam, sheet, fiber, powder, and composite and honeycomb structures. Due to their versatility and desirable attributes, these resins offer the industry a smooth transition path from traditional thermosets to lighter, more environmentally cautious and more easily processed thermoplastics.

Displaying Aircraft Applications of ULTEM™ Resin:

At its exhibit (Stand #6C51B), the company is displaying aircraft applications that benefit from a variety of ULTEM™ materials. These include interior parts, seating, lighting, structural elements, electrical components and composites.

To address the industry’s sustainability goals, SABIC is showing how these different ULTEM™ material formats support mono-material designs that may simplify recycling. Furthermore, SABIC supplies ULTEM™ resin grades containing certified International Sustainability and Carbon Certification Plus (ISCC+) renewable feedstock.

“With our long history of providing high-performance ULTEM™ materials to the aerospace industry, and strong focus on sustainable solutions, SABIC is perfectly positioned to address current and emerging aerospace challenges,” said Maureen MacDonald-Stein, director, Portfolio Strategy and Marketing, SABIC Polymers, Specialties business, SABIC. “We are helping customers replace traditional materials with thermoplastics to cut weight, streamline processing and reduce carbon footprint. To facilitate this transition, SABIC offers a variety of ULTEM™ materials that can enhance design flexibility, meet application and regulatory requirements, and may help drive down system costs. Our exhibit at AIX 2024 showcases the breadth and depth of our portfolio of high-heat materials.” 

ISCC+ Certified Renewable Grades

The wide array of ULTEM™ formats on display at AIX 2024 can empower designers to adopt mono-material applications that facilitate recycling. Combining injection molded components with foam, sheet, composites or textiles – all made with ULTEM™ materials – can help avoid the need for costly separation at end of life. Mono-material designs made with ULTEM™ grades can also help to streamline the supply chain vs. sourcing disparate materials from multiple suppliers. 

Also contributing to sustainability are the ISCC+ certified renewable ULTEM™ grades that deliver the same high performance and processability as incumbent materials, enabling them to serve as drop-in alternatives, and potentially shortening their qualification cycle. Certified renewable ULTEM™ resins can potentially reduce carbon footprint by up to 10 percent compared to fossil-based incumbent grades.

An example is a cove lighting concept made with ISCC+ certified renewable ULTEM™ 9085 resin. It is developed by Vaupell, a tier supplier to the aerospace industry, which will be on display at SABIC’s booth. 

For Extremely Lightweight and Strong Honeycomb Structures

ULTEM™ resin can be used in a variety of formats to meet the needs of aircraft interior applications. In injection-molded parts such as passenger service unit, ULTEM™ 9085 resin with molded-in color can enhance aesthetics, cut weight and ensure dimensional stability. ULTEM™ 1010 resin can be used to extrude exceptionally lightweight and strong honeycomb structures for interior parts such as side walls, ceilings and galley builds. Other structural applications featured at the SABIC booth include brackets and fasteners. 

For electrical and fiber optic connectors, ULTEM™ 2300 resin and EXTEM™ XH2115 resin deliver a low coefficient of thermal expansion (CTE) and excellent dimensional stability. They also enable thin-wall, complex connector designs. 

SILTEM™ resins combine the high-heat performance of ULTEM™ resin with the flexibility of silicone elastomers. These deliver high performance in extruded wire & cable applications without intentionally added per-and polyfluoroalkyl substances (PFAS).

Powder Alternative to PEEK

ULTEM™ CRS powder can be used in carbon fiber composites and unidirectional (UD) tapes for structural parts as a potential alternative to polyetheretherketone (PEEK). 

Non-woven fleece and non-woven textiles are two key applications for ULTEM™ 9011 fiber. This fiber offers low flame/smoke/toxicity and resistance to UV light, heat and chemicals. Applications include lightweight panels and sandwich structures. 

ULTEM™ resins can be foamed to create lightweight cores or extruded into sheet products. They can also be metallized using electroless plating. At AIX 2024, SABIC is highlighting its collaboration with Cybershield, a U.S. supplier of metalized plastic components. The two companies are evaluating the plating compatibility, quality and performance of filled and unfilled ULTEM™ resins. 

While the ULTEM™ material portfolio is highly diversified, these amorphous thermoplastics share common attributes including compliance with FAR 25 853 regulations. They feature elevated thermal resistance, high strength and stiffness, broad chemical resistance, and inherent flame retardance. ULTEM™ materials can be extruded, thermoformed, extrusion blow molded, foamed and injection molded, and can be reinforced with glass or carbon fiber.

AIX 2024 is being held May 28-30, in Hamburg, Germany.

Source: SABIC/omnexus.specialchem.com

Today's KNOWLEDGE Share:Carbon Fiber Engine Block

Today's KNOWLEDGE Share

An engine block made of carbon fiber? 

Filed with the World Intellectual Property Office, @Nissan has come up with a patent for a composite engine cylinder block! Nissan does not expressly indicate the reason for this new design, only explaining how it would construct it. There is a lot of superfluous information relevant to engine builders and mechanics who may be interested in how Nissan intends to route oil lines and other systems, but the main takeaway is that the case of the engine would be made of composite materials, with the innards of the motor still produced from hard-wearing metals. 

That being said, this patent does not suggest that an engine made entirely of composite materials is not possible... 

Nissan simplifies the design as "a resin outer member which is welded to the main block." The main block is where the cylinders are housed and where combustion takes place, so this is where most of the heat stresses take place. In this design, the gap between the resin outer member and the inner main block would act as a water jacket, insulating the carbon fiber (or other composite material) that makes up the casing. 

One obvious benefit is a reduction of weight, but another is better management of thermal events. Nissan notes that a composite outer material would not warm up at the same rate as metal. Thus, this design would bring an engine to optimal operating temperature sooner after startup than if all materials were made of metal, reducing the risk of premature wear from inadequate lubrication. 

The obvious drawbacks include a potential increase in manufacturing costs and a possible reduction in reliability if the design is improperly implemented, but it has merit, and numerous outfits have sought to unlock the benefits of composite construction in engine manufacture. 

source: CarBuzz/ #managingcomposites/ #thenativelab

Neste, Marubeni & Resonac Partner to Produce Renewable Olefins in Japan

Neste, Marubeni Corporation and Resonac Corporation have entered into a cooperative agreement to enable the production of renewable olefins and derivatives.

The cooperation involves Neste RE™, a Neste-produced renewable raw material, being used to manufacture products at Resonac’s Oita Complex in Japan. Marubeni will coordinate all logistical arrangements from Neste to Resonac.

Building Value Chain for Renewable Chemicals:

Renewable Neste RE™ is a bio-based feedstock used in steam crackers. It is made from 100% renewable raw materials such as waste and residue oils and fats. Consisting of pure hydrocarbons, Neste RE™ can be used to replace conventional feedstock such as fossil naphtha in chemicals value chains, contributing to a reduction in greenhouse gas (GHG) emissions.

“Replacing fossil resources in the production of plastics is one of the major challenges the industry faces. We are excited to team up with Marubeni and Resonac in tackling this challenge. The sustainability transformation requires committed frontrunners and that is exactly what Marubeni and Resonac are,” says Carrie Song, senior vice president, Commercial, Renewable Products at Neste.

“We are excited to embark on a project to build the value chain for renewable chemicals, partnering with Neste, the world's leading renewable feedstock supplier, and Resonac, a leading chemical company in Japan. We aim to contribute to the carbon neutrality of the petrochemical industry by establishing a trade flow of diverse renewable feedstocks in addition to conventional raw materials,” says Yoshiaki Yokota, chief executive officer Energy & Infrastructure Solution Group at Marubeni.

“We are very happy to work cooperatively with Neste and Marubeni to cater to the need for renewable olefins and derivative products in the market. Resonac’s Oita Complex has been ISCC PLUS certified. The Oita Complex will continue providing the market with renewable olefins and derivative products by applying a mass balance method based on the ISCC system,” states Hirotsugu Fukuda, general manager of the Olefins & Derivatives Business Unit at Resonac Corporation.

Source: Neste Corporation/adhesives.specialchem.com

Today's KNOWLEDGE Share:Researchers Find Bright Plastics May Degrade Faster, Creating More Microplastics

Today's KNOWLEDGE Share 

Researchers led by the University of Leicester have demonstrated that plastics with bright colors such as red, blue, and green degrade and form microplastics quicker than those with plainer colors.

Their findings reveal that the colorant used in the formulation of a plastic product can significantly affect the rate at which it degrades and breaks down, potentially introducing harmful plastics into the environment more quickly.

Conducted Two Complementary Studies to Compare Degradation:

Published in the journal Environmental Pollution, it is the first time this effect has been proven in a field study and could be important for retailers to consider when designing plastics and packaging.

Researchers from the University of Leicester, UK and the University of Cape Town in South Africa used two complementary studies to show that plastics of the same composition degrade at different rates depending on what is added to color them.

One study used bottle lids of various colors and placed them on top of the roof of a university building to be exposed to the sun and the elements for three years. The second study used different colored plastic items that were found on a remote beach in South Africa. Importantly, samples were only analyzed when the date of the manufacture of the plastic was known by a date stamp embossed into the plastic items.

The scientists measured how chemically degraded the samples were by looking at how much they had reacted with oxygen in the air using Fourier-transform infrared spectroscopy (FTIR). They also measured the structural integrity before and after, using a breaking strength test to measure how brittle and easy to break apart they were.

The findings across both studies showed that black, white, and silver plastics were largely unaffected whereas blue, green, and red samples became very brittle and fragmented over the same time period. In fact, older samples in South Africa were all plain colors and not brightly colored plastic items were found. But the sand itself was full of many colored microplastics.

Black, White, and Silver Colorants Protect the Plastic from Damaging

This demonstrates that the black, white, and silver colorants protect the plastic from damaging ultraviolet (UV) radiation whereas other pigments do not. UV damage changes the plastic’s polymer structure, making it brittle and susceptible to fragmentation.

The research was led by Dr Sarah Key, who conducted the studies while a PhD student at the University of Leicester School of Chemistry and funded by CENTA – The Central England NERC Training Alliance and is now a senior research analyst with climate action NGO WRAP (Waste & Resources Action Program).

Dr Key said, “It’s amazing that samples left to weather on a rooftop in Leicester in the UK and those collected on a windswept beach at the southern tip of the African continent show similar results. What the experiments showed is that even in a relatively cool and cloudy environment for only three years, huge differences can be seen in the formation of microplastics. Colorful plastics, such as red and green, degrade and form microplastics pretty quickly. When you look at plainer colors, such as black and white, they’re actually quite stable and remain intact. Next time you clean up some plastic litter, take note of the color and think about how soon it would have otherwise broken down. Whatever the color, always check the packaging for details of how to recycle plastic packaging.”

Suggestion to Give More Consideration to Color of Short-lived Plastics:

Microplastics display different properties from their original bulk materials, and little is understood about their impact on the environment. We know that they can release toxic plastic additives into the environment, and they can potentially be transferred to humans, as well as toxic chemicals on their surfaces, through the food chain and water supplies.The study has significant implications for material design and suggests that manufacturers should give more consideration to the color of short-lived plastics.

Dr Key added, “Manufacturers should consider both the recyclability of the material and the likelihood of it being littered when designing plastic items and packaging. For items that are used outdoors or extensively exposed to sunlight, such as plastic outdoor furniture, consider avoiding colors like red, green, and blue to make them last as long as possible. Where the plastic is designed to break down, such as by using pro-oxidant additives, consider the role that color could play in this.”

Co-author professor Sarah Gabbott, from the University of Leicester School of Geography Geology and the Environment, said, “I’ve often wondered why microplastics in beach sand often appear to be all the colors of the rainbow. Until our study I assumed that my eyes were being deceived and that I was just seeing the more colorful microplastics because they were easier to spot. Turns out there really are likely to be more brightly colored microplastics in the environment because those plastic items pigmented red, green, and blue are more susceptible to being fragmented into millions of tiny, yet colorful microplastic particles.”

Source: University of Leicester/polymer-additives.specialchem.com